Home / 28,299.50-39,042.06-19,799.36

Finding the Fourth Proportional to 28,299.50, 39,042.06 and 19,799.36

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Solution

The fourth proportional to 28,299.50, 39,042.06 and 19,799.36 is: 27,315.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.50 : 39,042.06 = 19,799.36 : x
  2. Step 2: Convert to fraction form
    28,299.50/39,042.06 = 19,799.36/x
  3. Step 3: Cross multiply
    28,299.50x = 39,042.06 × 19,799.36
  4. Step 4: Simplify right side
    28,299.50x = 773,007,801.08
  5. Step 5: Solve for x
    x = 773,007,801.08/28,299.50
  6. Step 6: Final answer
    x = 27,315.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.